William a



(No Model.)

W. A. SWEET.

TURNING THE ENDS OF SPRINGS.

No. 320,187. Patented June 16, 1885.

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FFICE.x

\VILLIAM A. S\VEET, OF SYRACUSE, NElV YORK.

TURNING THE ENDS OF SPRINGS.

ESPECIFICATION forming part of Letters Patent No. 320,187, dated June 16, 1885.

Application filed June 12,1884.

T 0 all 1071 0712, it may concern:

Be it known that I, WILLL-in A. Swnn'r,

of Syracuse, Onondaga county, State of New York, have invented a new and useful Machine for Rolling the Ends of Springs for Vehicles, of which the following is a specification.

My invention is made to facilitate properly and expeditiously turning the ends of springs for vehicles with accuracy and precision. l attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a front elevation; Fig. 2, a side elevation; Fig. 8, a plan; Fig. 4, an enlarged detail.

The same letters of reference are used in all the figures to designate like parts.

On a suitable frame and bed, A, made to support the working parts, there is an oblong plate or lifter, a, pivoted on trunnions at I). that'turn in bearings c, affixed to the bed A of the frame. This lifter a is level on its upper surface, except at its forward end, which is chamfered oii and slightly curved upward, and it is broad enough for the broadest spring to be turned on it. (Clearly seen in Fig. 4.) Near the front end of this lifter it rests on a vertical bar, a, the lower end of which bears on the end of a foot lever or treadle, a", (see Fig. 2,) by which the lifter a is raised to bring the spring to be turned up to the pin At right angles to the lifter, near the front end, slideways are at'fixed to the bed, in which a carriage or pin-drawer slides, moved by a pinion gearing into a rack on its under side, which is turned by alever, e, (see Fig. 1,) by which the pin f is moved through the two holders 1 over the end of the litter, and drawn back to release it from the curved end of the spring after it has been bent around it, as in Fig. 4. To connect the pin fwith the pin-drawer d, it is made to rest in a recess formed by the projections (1, upon the inner end of d, the head of the pin fitting in between the projections, and its shank resting in a recess in the inner one, Figs. 1, 2. By this means the pin is readily withdrawn to cool it and replaced without disturbing any other part. \Vhen it is thrust forward No model.)

by the pin-driver, it projects through the two holders g g, atlixed to the bed on each side of the lifter, and after the end of the spring has been turned around it it is drawn out by turning the lever c.

Opposite the pin f, and parallel with it, is a shaft, h, resting injonrnal-bearings h, affixed to the bed. This shaft is set eccentric t0 the axis of piuf. (See Fig. 4.) It bears upon its inner end a stout radial arm, 1, turned over the pin f at its outer end, in which a tool I denominate a wiper, i, is set. On the 0pposite end of shalt it there is a radial handle, [L2, by which it is turned.

\Vhen this machine is to be used, the lifter a is depressed and the wiper turned down into position 1. (See Fig. 4.) The pin fis thrust forward above the lifter, ready to receive the heated end of the spring, which is put in upon the lifter, its end projecting over thelifter, above the wiper, and under the pin f. )y bearing upon the treadlea the spring. isborne by the lifter up against the pin and firmly hcld,whiie the wiper is forced around into posit ions 2 and '3, gradually approaching the pin in its circuit, and bending the heated end of the spring close around the pin, Fig. L. By means of the lever-handle h" the wiper is then thrown back, the lifter fails, and the pinf is withdrawn, leaving the machine ready for a rep *tition of the operation.

l--la'.'ing thus described my machine, I claim 1. in combination with the pin f, the lifter a, having its front end curved upward, as set forth, consl rucied, arranged, and operated sub stantially as and for the purposes described.

2. The wiper i, placed andsupported eccentricl'o thcslidingpinf, as and firthe purposes specified.

3. The shaft l1. and wiper-arm v7, placed eccentric to pin], as and for the purposes specilied.

4. The combination of the lifter a, having its end turned upward, and the eccentric wiper i1, and pin f, for turning the ends of Vehiclesprings, siibstantially as herein described.

\V. A. SYVEET.

\Vitnesses Myrrnnw CUNNiNu HAM, HENRY BABOOCK. 

